Thanks for your responses. I've got sample plans from Ohio, Florida, Texas and Mississippi. It's interesting to see the variation in the anchorage zone reinforcing between the four different plan sets. For the longer spans (80 feet +) some use pot bearings under the columns while others...
Qshake-
Can you give me the contact at MoDOT that I can talk to about this particular bridge? I have a colleague who has written numerous articles and books on integral and semi-integral bridges and would like to talk to someone about this particular situation and the possibility of using some...
Does anyone know of a location on the internet where I could find a copy of the Homberg charts? I have a copy of the Pucher charts which may be good enough for what I'm doing but if the Homberg charts were available that would be even better. Thank you!
Does anyone know of any internet resources which would give basic design examples for either concrete or steel which would be designed per the CAN/CSA-S6-06 code?
Qshake-
It certainly helps when you know of bridges with similar spans and widths. Having that information in hand along with experience in doing this several times makes this exercise fairly easy. For preliminary analysis, we've typically added 10% of the box girder weight to account for...
http://216.122.147.238/BridgeMoveLive.html
See the link above. This is a corridor running through Salt Lake City on I-80. There were 7 bridges built off site. One by one they'll be moved into place via SPMT. Once they're at the appropriate site they'll be launched out and then lowered into...
Umassengr-
LRFD spec calls it a dynamic load allowance. Deck joints have a DLA of 75%, fatigue and fracture limit states have a DLA of 15% and all other limit states have a DLA of 33%.
envc77 & Umassengr-
Do you know if either Midas Civil or ADAPT perform code checking? Are these two programs fairly simple to use? I would presume that as long as you're experienced with designing PT girders that the differences between programs would be fairly insignificant.
Any thoughts...
I've used Consplice for spliced post-tensioned girders in the past. What other programs are people using for designing bridges to take into account time-dependent analysis with construction staging?
Have you considered a steel box girder? Shipping limitations might dictate the need for a field splice. The two segments could be spliced together and then lifted as one piece onto the supports. This would eliminate the need for costly erection towers or other temporary supports. If erection...
I'm looking for an example on how to model a simply supported rectangular concrete beam with tension reinforcement. I want to be able to model the concrete and the rebar separately. Does anyone have an example like this. The folks at Bentley have not been receptive to my requests.
I'm sure this topic has come up before but I couldn't find anything on it. Say I have the x & y coordinates for a circle. When I graph it and then print it out, it appears to be an ellipse. How do I get the printout of the circle to actually look like a circle instead of an ellipse?
Anyone willing to share sample plans for securing the first beam. Once the second beam is in place then you can tie the two together with temporary x-frames, etc and you shouldn't have any problems. Sure there are lateral stability issues during lifting but these issues are still present due...